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Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 3961973 | Lightweight aggregate A lightweight aggregate for use in concrete mixes with Portland cement consists essentially of bottom ash produced as a by-product of burning pulverized coal in a dry-bottom furnace. The ash is sized to remove particles substantially exceeding 3/8 inch in... | 06/08/1976 |
| 3951091 | Bilge blower ignition interceptor A self-latching relay is connected in series with the ignition circuit of a power boat to interrupt power to the starter and ignition circuits until the relay is actuated. A thermal delay timer is connected to one of the control switches for the bilge blo... | 04/20/1976 |
| 3951797 | Photooxidative destruction of organic wastes A method for promoting the photooxidative destruction of organic waste pollutants by use of gelled metal alginate particles which have been stained with a dye sensitizer. The stained particles are both recoverable and biodegradable. They are effective in ... | 04/20/1976 |
| 3951612 | Erosion resistant coatings Composite coatings are formed of a ceramic-type material such as chromium carbide over an intermediate layer of a ductile metal such as nickel on stainless steel turbine compressor blades. Such coatings were found to reduce the erosion by entrained partic... | 04/20/1976 |
| 3949838 | Bicycle with self-aligning disc brakes A bicycle with a disc brake includes a brake mounting bracket attached to the bicycle frame and restrained against movement about the axle of the wheel with which the brake is associated during braking action. The brake pads are mounted on an actuator and... | 04/13/1976 |
| 3950744 | Modular buzzer with diaphragm molded into housing A modular buzzer device which includes a striker arm, a diaphragm, and electromagnetic means for oscillating the striker arm. The device is housed in a container with a shape and size corresponding to a common electronic component configuration. The diaph... | 04/13/1976 |
| 3947314 | Method of treating paper fibers in a stationary screen A paper fiber treatment system utilizes a screw revolving in a perforated cylinder as a tailings screen in place of conventional vibratory or other screens to separate undefibered fibrous materials or other undesirable solids from the free fibers. The tai... | 03/30/1976 |
| 3945575 | Recovery of salvageable components from waste materials Mixed solid waste, such particularly as municipal waste, is subjected to a pulping action which results in fragmenting the glass and metal constitutes into particles of similar size, with the cast and foil aluminum being converted into the form of chunks ... | 03/23/1976 |
| 3945004 | High efficiency buzzer An electronic buzzer has a tuned oscillating striker and an electronic oscillator circuit matched to the striker tuned frequency and driving the striker by close coupling of a driving coil to a core member which forms part of an electromagnetic circuit wi... | 03/16/1976 |
| 3943817 | Split bolt The split bolt comprises plural bolt segments having threaded outer surfaces which are brought radially together to render the bolt insertable into a complementary threaded recess, and spaced radially apart to cause the bolt threads to become engaged when... | 03/16/1976 |
| 3943288 | Telephone incorporating binary coded decimal time display A combined telephone and binary clock is disclosed in which light emitting diodes are formed in the telephone push buttons and are provided with a binary coded decimal display so that telephone push buttons provide an indication of time. The clock may be ... | 03/09/1976 |
| 3942512 | Pharyngeal and nasopharyngeal treatment A mouthwash solution and method for treating both the lower and upper throat. The aqueous solution contains dioctyl sodium sulfosuccinate as the active ingredient. The treatment of the lower throat involves holding a small amount of the solution in the mo... | 03/09/1976 |
| 3941306 | System of interconnected, sealed and unsealed bags A web of bag blanks, a method of making the web, and apparatus and method for filling and sealing the bags in the web. The web is formed as a continuous tube having spaced, transverse seal lines extending from a lower edge of the web to a point short of t... | 03/02/1976 |
| 3941213 | Fork lift with limit switch controlled retractable guard A fork lift with a retractable overhead guard has limit switches built into the mast and one rail of the retractable guard which prevent the fork lift from being raised above a predetermined height when the guard is lowered, and when the fork lift has bee... | 03/02/1976 |
| 3940584 | Coaxial switch for high frequency signals Disclosed is an improved switch particularly adapted to be used as a coaxial cable switch for cable television systems because of its superior isolation of the signal inputs. The switch comprises an electrically insulating body, first, second and third te... | 02/24/1976 |
| 3938437 | Variable speed unwind controller drum The unwind controller drum for metering web material into a web processing machine is positively driven by a positive, fixed-ratio drive train. Several drive ratios are selectively available, each differing only slightly from another to provide minute cha... | 02/17/1976 |
| 3938433 | Trash compactor with clock timer control A trash compactor is provided with manual controls for causing a compacting cycle and additional clock timer operated controls which can operate the compactor ram through a cycle with an extended delay period after a compacting stroke at some time of day ... | 02/17/1976 |
| 3938667 | Combination tie rack A tie rack designed to support both untied and pretied neckties which includes a base plate, posts received in sockets formed in the base plate and projecting from a front face thereof, wire loops disposed between the posts with the ends of the loops rece... | 02/17/1976 |
| 3937355 | Removable liner for trash compactors In a trash compactor which includes a ram for compacting waste materials deposited in the compactor, a two-piece, reusable liner is positioned within the compactor to receive the waste material and facilitate removal of the waste material after compaction... | 02/10/1976 |
| 3936121 | Jumper cables for sparkling polarity indicator Jumper cables or battery charging cables for automotive use and the like are disclosed in which at least one of the cable's gripper jaws or clamps is provided with a length of coiled heater-resistance wire. The length of wire is clamped to the portion of ... | 02/03/1976 |
| 3936067 | Ski clamp A clamp for holding a pair of skis in joined relation has an integral body with outwardly extending arms joined by a generally U-shaped neck portion, the arms and neck portion are resilient to accommodate flexing of the arms in a parting direction such th... | 02/03/1976 |
| 3936135 | Catching apparatus and method for jet drop recording In a jet drop recording system a drop catcher includes a drop impinging face having a narrow slot at its lower edge so that drops impinging on the face may travel over it to the slot for removal from the system. A reduced pressure is maintained in the cat... | 02/03/1976 |
| 3934836 | Mandrel assembly A mandrel assembly in which the mandrel segments are expanded and contracted by means of a draw rod extending through the mandrel and driven by the same motor that rotates the mandrel during winding or unwinding operations. The draw rod is fixed for rotat... | 01/27/1976 |
| 3931900 | Peeler and grater apparatus The knives on the surface of a peeler and grater disc for a vegetable peeling machine are formed from portions of the disc and are integral therewith. The knives are arranged in generally spiral rows from the center of the disc. Upturned reinforcing lips ... | 01/13/1976 |
| 3932275 | Process for the treatment of mineral slimes A method of dewatering mineral slimes by adding fly ash and then a polyelectrolyte and blending slowly and thoroughly. The clear water supernatant may be drawn off from the sedimented coagulated solids. The coagulated solids may be further dewatered or tr... | 01/13/1976 |
| 3931602 | Thermal limiter for one or more electrical circuits and method of making the same This invention relates to a self-contained thermal limiter construction which can be used to limit one or more electrical circuits and comprises a thermally responsive device having leads for being interconnected into such electrical circuit or circuits a... | 01/06/1976 |
| 3931498 | Cutoff saw Logs which are to be divided into standard length blocks are first measured and their total length is displayed visually on an electronic readout device. Based on this length measurement, an operator selects one of several standard lengths and causes the ... | 01/06/1976 |
